Observed Signal · May 6, 2025 · Funding · Source: Tech.eu · Impact: 3/5 · Sentiment: Positive
StackOne raises $20M for API integration platform
London-based API integration startup StackOne has raised $20M in a Series A round led by GV (Google Ventures), with participation from Workday Ventures, XTX Ventures, Episode 1, Playfair, and angel investors from OpenAI, DeepMind, Microsoft, and Mulesoft. The company offers an AI-agent-powered integration platform that helps businesses connect multiple APIs more efficiently, reducing manual integration work. With total funding now at $24M, StackOne plans to scale its AI capabilities, expand integration coverage, and support a growing community of AI developers. The round highlights the increasing importance of seamless API integration as AI agents proliferate across the B2B software landscape.
API integration is a critical infrastructure need for the AI agent economy; StackOne's AI-native approach could become a key enabling layer for B2B SaaS and AI tooling.
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Key Takeaways & Evidence Grounding
- StackOne raised $20M in Series A funding.
- The round was led by GV (Google Ventures).
- Total funding now stands at $24M.
- StackOne provides an AI-powered API integration platform.
- The company plans to expand AI capabilities and integration coverage.
Connected Companies & Entities
6 Entities mapped“participation from Episode 1...”
“angel investors from OpenAI, DeepMind, Microsoft, and Mulesoft...”
“angel investors from OpenAI, DeepMind, Microsoft, and Mulesoft...”
“angel investors from OpenAI, DeepMind, Microsoft, and Mulesoft...”
“led by GV (formerly Google Ventures)...”
“angel investors from OpenAI, DeepMind, Microsoft, and Mulesoft...”
Ontology Mapping & Concepts
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